In my SharePoint 2010 solution I am creating Top Link Navigation programmatically ( on feature activation). Now on other feature activation I am adding a subsite to my site. I want my sub site to inherit the parent site's TLN. But I didn't find any parameter for this in the following method e.g.
parent.Webs.Add(siteURL, siteTitle, "", Convert.ToUInt32(LOCALE_ID_ENGLISH), siteTemplate, false, false);